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The Impact of Multiphase Reactions of No2 with Aromatics: a Modelling Approach : Volume 2, Issue 1 (11/02/2002)

By Lahoutifard, N.

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Book Id: WPLBN0003997280
Format Type: PDF Article :
File Size: Pages 26
Reproduction Date: 2015

Title: The Impact of Multiphase Reactions of No2 with Aromatics: a Modelling Approach : Volume 2, Issue 1 (11/02/2002)  
Author: Lahoutifard, N.
Volume: Vol. 2, Issue 1
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Ammann, M., Gutzwiller, L., George, C., Lahoutifard, N., & Ervens, B. (2002). The Impact of Multiphase Reactions of No2 with Aromatics: a Modelling Approach : Volume 2, Issue 1 (11/02/2002). Retrieved from

Description: Laboratoire d’Application de la Chimie à l’Environnement (LACE), CNRS-UCBL, 43, Boulevard du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France. The impact of multiphase reactions involving nitrogen dioxide (NO2) and aromatic compounds was simulated in this study. A mechanism (CAPRAM 2.4, MODAC Mechanism), was applied for the aqueous phase reactions whereas RACM was applied for the gas phase chemistry. Liquid droplets were considered as monodispersed with a mean radius of 0.1 mm and a liquid water content (LWC) of 50mg m-3. The multiphase mechanism has been further extended to the chemistry of aromatics, i.e. reactions involving benzene, toluene, xylene, phenol and cresol have been added. In addition, reaction of NO2 with dissociated hydroxyl substituted aromatic compounds has also been implemented. These reactions proceed through charge exchange leading to nitrite ions and therefore to nitrous acid formation. The strength of this source was explored under urban polluted conditions. It was shown that it may significantly increase gas phase HONO levels. About one order of magnitude change of HONO concentration was observed with finally, a minor effect on subsequent gas phase daytime photochemistry because of the limited aerosol life time considered.

The impact of multiphase reactions of NO2 with aromatics: a modelling approach


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